Fairfax Weather Forecast

    • 71
    • 93

    Chance Thunderstorms

    • 71
    • 91

    Chance Thunderstorms

    • 71
    • 91

    Chance Thunderstorms

    • 70
    • 89

    Chance Thunderstorms

    • 67
    • 87

    Chance Thunderstorms

    • 64
    • 83

    Mostly Sunny

    • 62
    • 83

    Partly Sunny

Today 19 Sep Chambers

Mostly sunny with a chance of Showers and Thunderstorms. Near steady temperature in the lower 90s. North Winds around 5 Mph. Chance of rain 50 percent.

Tonight 19 Sep Chambers

Mostly cloudy with a chance of Showers and Thunderstorms in the Evening, then partly cloudy after midnight. Patchy fog after midnight. Lows around 70. Southeast Winds around 5 Mph in the Evening, becoming light and variable. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Fairfax Temperature Statistics

September Temperature

LaGrange-Callaway Airport (15.5 miles)

  • Lowest 17 September, 2026

    62.6 °F

  • Average September

    79.3 °F

  • Highest 3 September, 2026

    96.8 °F

Climate (2021–2026)

LaGrange-Callaway Airport (15.5 miles)

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  • Average Low 2021–2026

    51 °F

  • Average 2021–2026

    61.8 °F

  • Average High 2021–2026

    73.7 °F
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